Development of a Geo-spatial Analysis Methodology for Assessing the Adequacy of Hydrographic Surveys and Nautical Charts
Title | Development of a Geo-spatial Analysis Methodology for Assessing the Adequacy of Hydrographic Surveys and Nautical Charts |
Publication Type | Thesis |
Year | 2012 |
Authors | Azuike, C |
Degree and Program | Master of Science |
Degree | Ocean Engineering/Ocean Mapping |
Number of Pages | 163 |
Date Published | December |
University | University of New Hampshire |
Location | Durham, NH |
IHO Publication C-55 contains information about the progress of hydrographic surveying and nautical charting for littoral states. Listed primarily as percent coverage, it is difficult to use this information to determine: 1) if the current level of surveying or charting is adequate or in need of action, or 2) can be used to compare different locations. An analysis methodology has been developed to assess the adequacy of hydrographic surveying and nautical charting coverage. Indications of chart adequacy as depicted on charts or sailing directions are spatially correlated with significant maritime areas associated with navigational/national interest. However, an analysis based solely on these datasets is limited without access to the current depth information. Publically-available, multi-spectral satellite imagery can be used to derive estimates of bathymetry and provide information in previously unsurveyed areas. Preliminary results show that multi-spectral satellite remote sensing is potentially beneficial as a reconnaissance tool prior to a hydrographic survey. | |
https://scholars.unh.edu/thesis/746 |